baber/WOPTO huggingface dataset:
Patent GB-459196-A (GB)
Title: Improvements in and relating to photographic cameras
IPC: D06B3/08
Filed: 1935-08-15
Abstract: 459,196. Photographic cameras combined with exposure meters. ZEISS IKON AKT.-GES., 72, Schandauerstrasse, Dresden, Germany. Aug. 15, 1935, No. 22995. Convention date, Aug. 16, 1934. [Class 98 (i)] In a camera wherein a photo-electric exposure-meter is coupled with the diaphragm and shutter adjusting devices, the coupling includes a series of resistance elements having different specific resistances in order to correlate the scales of the meter and the devices adjusted. The elements may be formed of sprayed carbon dust. As shown, a photo-electric cell 7 and galvanometer 8 are connected to arms 3, 6 wiping over curved resistance members 2, 5 one having diaphragm graduations 1 and the other shutter-speed graduations 4. Movement of the pointer 3 sets the iris diaphragm of the objective, and movement of the pointer 6 sets the camera shutter. To allow for the non-uniform spacing of the diaphragm graduations, the resistance member 2 is built up of a series of parts 2a, 2b, 2c ... having increasing specific resistances. The shutter-speed scale 4 has uniform graduation and the resistance member 5 is of uniform resistance for use with diaphragm shutters ; but a modification is described for use with roller-blind shutters wherein the pointer 6 moves over a non-uniform shutter scale, and the resistance member 5 is graded, like the member 2. Other factors, such as plate or film speed, can be allowed for as described in Specification 442,409.
Patent GB-1435279-A (GB)
Title: Vacuum cleaner operated by compressed air
IPC: A47L5/18
Filed: 1974-05-23
Abstract: 1435279 Suction cleaners NORCLEAN AS 23 May 1974 [25 May 1973] 23023/74 Heading A4F A suction cleaner operated by compressed air, and adapted to pick up dust, mud, and liquid, comprises a collecting container 3 having in a wall 2 thereof a tubular ejector housing 7 provided with at least one compressed air nozzle 4 and associated venturi tube 5, and where the housing 7 passes through the wall 2 a suction pipe 8, having an inlet outside and an outlet within the container 3, extends through the housing 7, the outlet not projecting radially from the latter, and the housing 7 having no radial projections within the container 3, thereby allowing it to be passed through an opening in the container wall of substantially the same diameter as the housing diameter. To avoid over filling of the container 3 with liquid a float valve 9 cuts off the flow of suction air through the inlet to the injector housing 7 when a predetermined amount of liquid has been collected. In an alternative embodiment the pipe 8 has an inclined straight portion passing across the housing 7.
Patent GB-614992-A (GB)
Title: Curing of polymeric materials
IPC: C08G18/76
Filed: 1946-08-02
Abstract: The process for curing organic di-isocyanate modified polyesteramides set forth in the parent Specification is applied to polyesteramides which have been modified with an aromatic tri-isocyanate.  Suitable aromatic tri-isocyanates mentioned are benzene - 1,3,5 - tri - isocyanate, toluene -2,4,6 - tri - isocyanate, ethylbenzene - 2,4,6-tri-isocyanate, monochlorobenzene-2,4,6-tri - isocyanate, triphenylmethane-4,41,411-tri-isocyanate and diphenyl-2,4,41-tri-isocyanate.  In the examples, a polyesteramide is prepared from ethylene glycol, monoethanolamine and adipic acid and is modified with toluene-2,4,6-tri-isocyanate or benzene-1,3,5-tri-isocyanate.  In example (1) the toluene-2,4,6-tri-isocyanate-modified polyesteramide is mixed with ammonium dichromate and 1-bromo-2-naphthol on a cooled two-roll rubber mill and the mix formed into sheets.  In example (2) the curing properties of mixes of toluene-2,4,6-tri-isocyanate modified polyesteramide and of benzene-1,3,5-tri-isocyanate modified polyesteramide and carbon black are compared with those of similar mixes to which ammonium dichromate, dibutyl phthalate and 2,4-dibromo-1-naphthol have been added.ALSO:Aromatic tri-isocyanates are obtained by passing phosgene into a suspension of the corresponding triamine hydrochloride in an inert medium, e.g. o-dichlorobenzene at 140-180 DEG  C. Tri-isocyanates mentioned are benzene-1,3,5-tri - isocyanate, toluene - 2,4,6 - tri - isocyanate, ethylbenzene-2,4,6-tri-isocyanate, monochlorobenzene-2,4,6-tri-isocyanate, triphenylmethane-4,41,411-tri-isocyanate and diphenyl-2,4,41-triisocyanate.
Patent GB-1112974-A (GB)
Title: Fibre preparation machine
Inventor: STEWART WILLIAM RENNIE
IPC: D01H5/14
Filed: 1965-05-31
Abstract: 1,112,974. Pinned bars. WM. R. STEWART & SONS (HACKLEMAKERS) Ltd. 31 May, 1966 [31 May, 1965], No. 23070/65. Heading DIN. A stave bar or faller bar B has holes 1 for receiving pins P in a friction fit. The holes 1 do not extend the full depth of the bar but open into a bore 2 of larger diameter which in turn opens into a slot 4; thus the pin may be driven out of the bar from beneath, the lower portion 3 of the pin being of reduced diameter so that after being driven a certain distance the pin becomes loose in bore 1. Only the bore 2 or slot 4 may be provided. An elongated punch designed to fit in slot 4 may be used to simultaneously drive out a number of pins. In Fig. 4, not shown, a similar faller bar having a double row of pins is shown.
Patent GB-907772-A (GB)
Title: Milk food for babies
IPC: A23C9/20
Filed: 1959-07-06
Abstract: A milk food for babies is made from cow's milk by reducing the calcium content of cow's milk without substantially altering other salt contents and diluting the calcium-reduced milk with water in the ratio of about two parts of milk to three parts of water, the calcium being removed to an extent such that the diluted milk has a calcium content approximating to that of human milk; it is stated that under these conditions, the milk food will have both calcium and albumen contents approximating to those of human milk and will exhibit, like human milk, the phenomenon of reversibility of the curd at a pH value of 4.5 to 4 under the influence of stomach juice.  According to an example, one litre of cow's milk to which there had been added one gram of calcium oxide and two grams of alkali carbonate, was heated to a temperature of approximately 50 DEG  to 85 DEG  C.; the precipitate produced was separated by filtering or centrifuging.  The resulting filtrate was mixed with water, in a ratio of approximately 2 : 3, to which carbohydrates and fats had been added.
Patent GB-480444-A (GB)
Title: Improvements in or relating to electric signalling systems
IPC: H03C1/58
Filed: 1936-08-24
Abstract: 480,444. Modulating systems ; impedance networks. GENERAL ELECTRIC CO., Ltd., and LEY, D. A. Aug. 24, 1936, No. 23225. [Classes 40 (iii) and 40 (v)] In modulating and demodulating arrangements in which the input and output frequency bands are close together, the necessary provision for the avoidance of distortion, that the combined impedance of the input and output circuits as seen from the modulator or demodulator shall be constant over a substantial part of their combined pass ranges, is achieved by the use of two filters which are made complementary by means of suitable fractional terminations. Figs. 1 and 2 show a modulator C having input and output filters A, B, the input and output terminals of the modulator being the same in Fig. 1. The cut-off frequencies of the two filters are adjacent, and they are designed as complementary low and high-pass filters having fractional terminations 7, 8. Fig. 3 shows a demodulator C of which the input circuit includes a valve 6, which is of constant impedance as seen from the demodulator. The low-pass output filter B is provided with a complementary high-pass filter D in parallel, both having fractional terminations 7, 8 in order to render the output impedance constant over the working range.
Patent GB-928053-A (GB)
Title: Improvements in and relating to supporting means of the crushing head of cone granulators
IPC: B02C2/04
Filed: 1960-07-04
Abstract: 928,053. Roller-bearings. WESTFALIA DINNENDAHL GROPPEL A.G. July 4, 1960 [July 2, 1959], No. 23244/60. Class 12 (1). The crushing head of a granulator is supported by pairs of cylindrical and conical-shaped roller bearings which limit axial and radial movements of the head relatively to a support, the bearings 9, 10 are intermediate a column 4 of a support 3 and an eccentric dome 5, and are intermediate the dome 5 and a crusher-cone 6. An upper race 11 of the conical roller bearing 10 supports an outer race 12 of the cylindrical roller bearing 9 and the cone-shaped rollers are retained by a ring 13. Additional cylindrical roller bearings 14 radially support the head and labyrinth packings prevent ingress of impurities to the bearings.
Patent GB-588846-A (GB)
Title: Improvements in apparatus for producing magnesium, calcium and similar metals
IPC: C22B26/22
Filed: 1944-11-23
Abstract: 588,846. Discharging furnaces. ELECTRO METALLURGICAL CO. Nov. 23, 1944, No. 23267. Convention date, Feb. 11. Addition to 562,037, [Group II]. [Class 51 (ii)] [Also in Group II] The apparatus of the parent Specification, in which a charge to be heated is contained in an annular space between a shell and a hollow perforated core integrally fixed thereto, is modified in that the core 51 and the shell 46 are separate, the core being raised vertically from the shell at the end of the heating cycle to allow an exhausted charge to fall under gravity from the apparatus. The core is preferably tapered, having a greater diameter at the top than 'at the bottom. The annular space may be divided by vertical radial partitions 55 into alternate charge retaining and heat distributing compartments 53 and 54, and the said charge retaining compartments may be provided with further vertical heat distributing channels 57.
Patent GB-916290-A (GB)
Title: Microscope objective
IPC: G02B21/02
Filed: 1961-06-27
Abstract: 916,290. Microscope objectives. WILD HEERBRUGG A.G., and BERTELE, L. J. June 27, 1961 [Nov. 16, 1960], No. 23304/61. Addition to 889,687. Class 97 (1). The objective of the parent Specification has at least four collective components in front of the thick meniscus so as to improve correction at higher apertures. Optical data are given for one example of the objective shown.
Patent GB-815695-A (GB)
Title: Cartons and like receptacles for articles of merchandise
IPC: B65D5/42
Filed: 1957-07-23
Abstract: 815,695. Cartons. GOODMAN, L. (Paige, R. E.) July 23, 1957, No. 23306/57. Class 18. A carton for holding articles for display is made from a cardboard blank and formed at its rear part with a recess to receive the edge of a shelf or like support whereby it can project outwardly stably supported by the shelf. In one embodiment, Figs. 1 and 2, a tray-like structure is folded up from a blank as shown, so that recesses 25 are formed, the shape of these recesses ensuring that the weight of articles in the carton make for a tight and stable engagement. In another embodiment, a blank as in Fig. 4 is first folded to tubular shape, its final form being rectangular with a tray-like portion at its upper part. A further embodiment, Figs. 6 and 7 (not shown), is in the form of a deep carton having a bottom of interlocking flaps hinged to tube-forming panels. A still further embodiment, Figs 8-10. (not shown), provides a transport carton formed in known manner and having a recess defined only by perforations, so that by removing the part defined and folding in the lid portions, a display carton of similar type to those described is available.
Patent GB-986646-A (GB)
Title: A process for the preparation of a substituted tropone
IPC: C07C45/65
Filed: 1962-06-18
Abstract: A substituted tropone is prepared by subjecting a substituted dihydrotropone having all the substituents required in the final product and, in addition, a halogen atom attached to a ring C atom, to a dehydrohalogenation treatment preferably by heating in an inert solvent to a temperature above 50 DEG  C., e.g. 60-115 DEG  C. The starting material may be prepared by reacting a halo-substituted tropone, e.g. 2-halotropone with an organo-metallic compound e.g. 2-halotropone with an organo-metallic compound, e.g. a Grignard compound such as isopropyl-magnesium bromide preferably in the proportion of at least two equivalents of a Grignard compound per mole of the tropone and carried out at a temperature below -10 DEG C. and preferably between -60 DEG  and -80 DEG  C.  The starting material may also be prepared by subjecting a substituted dihydrotropone having all the desired substituents except all or part of the halogen atom to halogenation, e.g. by the use of N-bromosuccinimide or N-chloroacetanilide or by the use of free chlorine, and if necessary following this by dehydrohalogenation. The starting material may further be prepared by adding a halogen e.g. chlorine to a double bond in the molecule of a substituted tropone or by reacting a substituted tropone having at least one halogen atom as a substituent, e.g. 2-chloro-tropone which a diene, e.g. butadiene, in a Diels-Alder synthesis.  The latter product may be dehydrohalogenated and then further subjected to a dehydrogenation so as to convert it to a substituted benzotropone. In an example, 2-chloro-tropone was reacted with isopropyl-magnesium bromide to produce chloroisopropyl dihydrotropone which was dehydrochlorinated by dissolving in chloroform and heating to yield 2-isopropyl tropone. In another example, 2-chlorotropone was reacted with ethyl-magnesium bromide to yield 7-ethyl-2-chlorodihydrotropone which was dissolved in toluene and heated at 100 DEG  C. to yield 2-ethyltropone. Specifications 887,693, 887,694, 893,228 and 986,647 are referred to.
Patent GB-405056-A (GB)
Title: Installation for pressing oil-bearing seeds
IPC: B30B9/02
Filed: 1932-08-23
Abstract: 405,056. Presses for separating liquids from solids. HARBURGER EISEN-UND BRONZEWERKE AKT.-GES., Wilhelmsburg, Harburg, and PASCHKE, W., 33, Altwiedental, Hausbruch, near Harburg, Germany. Aug. 23, 1932, No. 23563. Convention date, Feb. 13. [Class 46.] In apparatus for extracting oil from seeds, the seeds pass from a cooker 1 to a preliminary moulding-device 2 which automatically wraps the cakes formed in cloths and delivers them on to a conveyer 4, passing in front of a number of filter-presses 5. Operatives move the cakes from the conveyer into the presses and return the pressed cakes to the conveyer, which delivers them to a device 9 for automatically stripping the cloths from the cakes. The stripped cakes pass to cutting apparatus 10, and the cloths are returned by a conveyer 12 to the moulding- device 2. The conveyer 12 near the device 2 passes round a pulley 13 and rollers 14 and each cloth is delivered on to a platform 2a, Fig. 3, from which it is drawn over the mould box 22 to the position indicated by dotted lines, by gripping-devices 20 on chains 23 driven by spur and pawl-and-ratchet gearing from a piston in a hydraulic cylinder 33. A feed-box 34 charged with seed from the cooker 1 moves from the side over the mould-box and delivers its contents thereto. The ends of the cloth are brought over the mould box by rollers 38<1>, 39<1> on pistons moving in cylinders 38, 39, and the cake thus wrapped is subjected to pressure by a die 42. Plates 48 which form the ends of the mould box are afterwards drawn down by a piston 47 and an ejector 45 pushes the moulded cake on to the conveyer 4. All the valves controlling the supply of pressure liquid to cylinders operating the several parts of this moulding and wrapping device are opened and closed in the required order by cams on a rotating shaft controlled by an electro-magnetic clutch. The automatic cake-stripping device is shown in Fig. 6. As the cake 6<1> is passed by the conveyer 4 under a roller 70, the free end of the cloth is caught by spikes 73 on the roller and the cake is drawn back over the roller while the cloth is wound thereon. The cake without the cloth then passes forward again under the roller and is delivered by a band 76 and table 79 to the cutting apparatus 10. The roller 70 is driven through an electro-magnetic clutch 71 and started when a cake passes under a roller 74 connected to a switch 72. When a cake on the band 76 lifts a roller 84, the latter moves a switch 82 and causes the roller 70 to rotate in the opposite direction. The roller 84 at the same time causes a lever 83a to bring a roller 85 into contact with the roller 70 so that the cloth on the latter is un-wound and delivered between the bands 4 and 76 on to the conveyer 12 for return to the moulding device.
Patent GB-501364-A (GB)
Title: Improvements in and relating to paper feeding apparatus for printing machines and the like
IPC: B65H9/10
Filed: 1937-08-27
Abstract: 501,364. Feeding sheets. LINOTYPE & MACHINERY, Ltd., and ROWLANDS, T. Aug. 27, 1937, No. 23566. [Class 100 (i)] In connection with the side-lay device of a sheet-feeding apparatus for printing and like machines, the grippers of the lay are operated by a flexible connection such as a Bowden wire from the printing-machine thus permitting of fore-and-aft adjustment of the lay. The lay and its operating devices are mounted in a bracket d secured to a clamp a adjustable laterally of the direction of feed on a shaft c which is so mounted that it can be adjusted longitudinally of the direction of feed. The sheet is registered against a pivoted stop z by means of a reciprocating gripper hammer p mounted in the extension o of a carriage m which is moved outwards (to the left in Fig. 1) by an operating rod connected by a Bowden wire to a cam on the printing- machine. The rod g is guided by a central aperture in the bracket d, and to the bracket d is secured a pair of rods e connected by a bridge-piece f, the rods e serving as guides for cylinders k connected by a crosspiece i secured to the rod g, and also as guides for the carriage m. The gripper hammer p is normally raised by the action of the crosspiece i on a lever arm s under the action of a main spring which presses the rod g to the right, but when the rod g is moved to the left the crosspiece is withdrawn and the hammer is moved to engage the sheet under the action of a sliding ring t pressed to the left by a spring u on the rod g adjustable by screws v. After the sheet is gripped the carriage m is moved to the left by the action of the members k. The carriage m is prevented from movement on the rods e by braking-members w which hold the carriage until it is moved positively by the members k. The gripper slides over the sheet when it reaches the stop z, and the stop is raised by the action of the carriage m on an arm a<1> of the stop before the carriage reaches its extreme position. Two stops z may be used or one may be held out of action by a catch d<1>. Sheet guides e<1> are attached to the stops.
Patent GB-749201-A (GB)
Title: Carbonyloxy steroids
IPC: C07J75/00
Filed: 1953-08-26
Abstract: The invention comprises compounds represented by the formula: <FORM:0749201/IV(a)/1> wherein R is an a -hydroxy group, a b -hydroxy group or ketonic oxygen, R1, R11 and R111 are same or different and each represents hydrogen or a hydrocarbon radical containing less than nine carbon atoms, and n is zero or 1, and the preparation thereof by treating the corresponding 3-keto-11-hydroxy- or 11-keto compound with an alkane diol in the presence of an acid catalyst, e.g. anhydrous hydrogen chloride, sulphuric acid, p-toluenesulphonic acid, benzene sulphonic acid or sulphoacetic acid.  As alkane diols there may be used ethylene glycol, trimethylene glycol, propane-1,2-diol, butane-1,2-diol, 3-methylbutane-1,2-diol, octane-1,2-diol, butane-1,2-diol, pentane-2,3-diol, 5,5-dimethyloctane-2,3-diol, butane-1,3-diol, pentane-2,4-diol and 4-methylpentane-1,3-diol.  Examples disclose the production of 3-ethylene glycol ketals of 3-keto-11a -hydroxy-, 11b  - hydroxy -, and 11 - keto - 4,17(20) - pregnadiene-21-oic acid methyl ester and the corresponding free acids.  Specifications 724,163, 733,448, 749,198 and 749,199 are referred to.
Patent GB-461746-A (GB)
Title: A discharge device for bottles to prevent refilling
IPC: G01F11/22
Filed: 1935-08-23
Abstract: 461,746. Non - refillable bottles. RAEMER, S. Aug. 23, 1935, No. 23667. Convention date, Oct. 31, 1934. [Class 125 (i)]' A non-refillable discharge device comprising a chambered stopper 17, Fig. 1, is inserted in the neck of a bottle so that it cannot be withdrawn. A partition or bar 1, attached to the stopper is provided with a semi-spherical body 7 at the inner end. A similar semispherical body 12, Fig. 6, is slidably mounted on a rod 10 urged by a spring 13 to form a complete sphere with the body 7 after the device has been inserted in the bottle neck, and reaches the wider part, thus preventing withdrawal. The discharge device is of the type described in U.S.A. Specification 1,969,385 and consists of a bracket 17 with inlet 18, discharge 19 and air vent 20, Fig. 3. A housing 21 has an inlet 22, an outlet 23 and air vent 24, Fig. 2, the housing 21 can be rotated relatively to the bracket 17 so that in one position, Fig. 1, inlet passages 18, 22 will register and in another, Fig. 3, passages 19, 23. The contents can easily be drained and from Fig. 3 it will be seen that the chamber 25 could be refilled, but on turning the housing back to the position of Fig. 1, where the inlets 22, 18 register, the air vents 24, 20 would be closed so that liquid in the chamber 25 could only with difficulty be dislodged. Merely inverting the device would be insufficient and suction impossible.
Patent GB-588847-A (GB)
Title: Improvements in combustion chambers for internal combustion turbines
IPC: F23R3/28
Filed: 1944-11-28
Abstract: 588,847. Generating combustion products under pressure. DARLINGTON, W. H., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Nov. 28, 1944, No. 23752. [Class 51 (i)] [Also in Group XI] In a combustion chamber 1 for internal combustion turbine plant in which a fuel jet 2 is directed in counter-current to a stream of compressed air flowing through the chamber, the pipe 3 supplying fuel to the jet 2 is provided with a surrounding sleeve through which passes cooling air from an annular chamber 4 surrounding the combustion chamber and traversed by an air stream 4a diverted from the main stream 1a. In the arrangement shown in Fig. 1 the sleeve 5 extends completely across the chamber 1, the cooling air, after traversing the whole length of the sleeve rejoining the secondary stream 4a. Fig. 2 shows a modification in which the sleeve 6 terminates within the combustion chamber, the cooling air in this case escaping through an aperture 6c into the main stream 1a.
Patent GB-1235054-A (GB)
Title: Preventing wheel slip in motor vehicles
IPC: B60T11/10
Filed: 1969-05-09
Abstract: 1,235,054. Controlling vehicles. DAIMLERBENZ A.G. 9 May, 1969 [10 May, 1968[, No. 23815/69. Heading B7H. In an arrangement for preventing the slipping or spinning of the driving wheels of a motor vehicle, the wheels being driven through a transmission from an I.C. engine, a pulse transmitter 16 is associated with said transmission and is selectively connectible, depending on whether positive or negative acceleration is present, with a correction element 24 associated with linkage between an operating means and a control element, such as a throttle valve, of the engine to reduce engine power if a predetermined acceleration is exceeded or with a brake slip control means 21 to limit maximum deceleration. In the arrangement shown in Fig. 1 the pulse transmitter 16 is connected through the middle contact 18 of a change-over switch relay 10 to the brake slip control means 21 unless an accelerator pedal is operated thereby closing a switch 14 and energizing the relay 10 to connect the middle contact 18 and the pulse generator 16 to the correction element 24. Alternatively the switch 14 may be actuated by a brake pedal. In further alternatives (Figs. 2, 3) not shown the relay is replaced by a pendulum operated change-over switch to selectively connect the pulse transmitter to the correction element or the brake slip control means.